Repository structure and ISO map

First contact with the disc: we mapped all 108 files and identified the EA resource container.

• ISO9660 (Mode2/2352) parser generates ISO_TREE.md with LBA, size, hash and format for each file.
• Boot: SLUS_010.68 (PS-X EXE). GlblData.psx and the .TRK tracks use the same chunk container.
• Recognized EA formats: SWVR (audio), WVE (video) — reusing community documentation.